Visible index.



F. L. IVIAcDONAGH.

VISIBLE INDEX.

APPLICATION FILED FEB. 6, |914.

Patented Nov. 26, 1918.`

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FRANK L. MACDONAGH, F CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO ACME CARD SYSTEM CO., A CORPORATION 0F SOUTH DAKOTA.y

VISIBLE INDEX.

Specication of Letters latent.

Patented Nov. 26, T216.

Application led February 6, 1914. Serial No. 816,897.

To all whom it may concern:

Be it known that l, FRANK L. MACDONAGH,

a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful lmprovements'in Visible lndexes, of which the following is a specication.

My invention relates to improvements in 'indexes and concerns more particularly that are to provide a visible, flexible index in which each name is written or printed upon a paper or like flexible sli held in place behind a protective shield o Celluloid or other transparent material, forming a unit therewith; to provide a series of name units arranged in visible position in or upon a supporting leaf or frame in such a manner that any one or any number of the series of name units may be inserted or removed without impairing the correct alphabetical or numerical arrangement of the rest of the index; to provide a construction in which the name units or slips are held resiliently in place in their frame but nevertheless may be readilvremoved or inserted in the frame; to provide, in an index of the class described, a novel and improved form of protective shield for holding the name strip securely in place, but readily detachable therefrom; to provide a protective shield which may re dily v be constructed of various dierent wi ths to permit the use 4of slips having one or a plurality of lines of matter printed or written thereon; to provide, in an index of the class described, a construction which shall be simple and economical to manufacture; and in general to provide an improved index of the character referred to.

In the drawings- Figure l represents the upper portion of a supportin leaf or frame 1n which my improved in ex units are mounted; l p

2 is a section along the line 2-2 of Fig. 3 isan enlarged fragmentary view of `the left hand portion of Fig. 2; and

Fig. e is a perspective view of one of my improved shields, with the name slip in place. i

' Referring to the drawings, 1 represents as a whole the supporting frame or leaf for .the

shield. 'This resilient action of the folded index units, which may be constructed from a sheet of suitable metal, the side longitudinal edges thereof being formed up to prov1de a pair of opposed side flanges 2 and 3 spaced apart from the sheet far enough to permit the insertion of the name units, and forming retaining channels.

The protective shield 4 is preferably constructed of a lamina or strip of transparent,

flexible Celluloid or suitable transparent material, each end of the strip being folded over fora short distance, as shown in Fig. 3.

Referring to Fig. 3 it will be seen that the end of the name slip 5 is inserted between the folded edges 6 and the opposed undersurface of the shield and is held in place by the resiliency of the fold 6, which normally, before the paper is inserted, tends to press tightly against the under surface of the edge 6 is rendered more effective bv making the fold in the form of a circular bead or channel 7. To permit the quick and ready insertion of the name slip 5, the end ofthe fold 6 is beveled, as shown, which enables the end of the slip to force open the 'fold 6, which, as just stated, normally is in Contact with the under surface of the shield before the insertion of the paper. The shields et are ordinarily constructed of approximately the same width as the name'slip,and are arranged to abut against one another at their upper and lower edges when they are placed in the leaf, thus forming practically a smooth, protective sheet of transparent imperishable material, which prevents the ingress of dust or the soiling of the name slips through handling of the index. To insert a new name, the name slip, which has been previously typewritten or printed with the name and other desired data, is placed in position behind one of the protective shields, as shown in Fig. 4;, care being taken to seethat the edges 6 grasp each end of the slip evenly, and that the latter is held straight ibo' tance between theends sufficiently to per- 1.05

mit its ready insertion into the leaf behind the opposed flanges 2 and 3. lf it is desired to insert a new unit in the middle of an existing leaf of names, it is a simple matter to insert the point of a knife or other suitable 11o zool at the place Where the new name is te be inserted and tlien bodily pusli npwaid the top seccion 01"' naine units a sufficient distance "no allow space for the new naines since the side flanges i), and 3 ae spaced apa ein tlie main Sheet 0In ille leal sufficient distance to allow the ends of tl e unite 'te slide freely therein. An. eldnaine unil;v iafliieli for some ieaeen may have loef cenie dead, may be readily ceineyed by i ,1g 'the end el1 a knife in the space .e L ee. llie sliield and tlie leaf, and pulling alie enit ont bedily- The Open Space ilien i .lling in lie index is lled up by anali 2; the :naine units en eitlie side ef opening @idinarilye it is advantageous leave small space al; lie top ci leaf;Q E peyide Leni? lie niniie additien. of ine 'this Space, however, usually keine;

ne l 1 le with blank shields; in order: t@ seen ieicy and ce prevent accidental meyee lie lippen seiiee ef unita inetalling a new7 indexi ii is elllen. yamdgeous rte manufacne the eennec'ed slieet having VIelle pope bienal form ai its tive paiallel e iler the lips is pinted en a l e7. by any Odiel' means, as a eingl spacing of ille yai'ions naines beinv te conform exactly '5o Aglie nlinai;

d l eti/Veen tlie individual t is e sayry lie Widli ei" Jalie allie-la e'liele elieefa bearing the naine@ ia if n esitien lieliind lie length of ileidj/ and the iS t.

tween the linee el' priniing. lt is obvious that, While this is being dene care should be laken te eee that the rs: naine unit cui; oil has its name properly cenalized in the slip. This method of nsalling new names in. the index makes it possible to eut the name units el yafious Widths i0 allow 'for slips of papel beaiing a sefies oi' names of the saine clasea ci ei" a name slip having only a Single name liefeen, lsn iequiing addiienal line spaces for an i ual amount of Special dataa `"Units of Speeal Widili are eli-mein in l al; 8 9,

i do nel; Wish ce be deails eeeneiuclien sliewn excep. speeiiiecl in the clainia claim as my invention:

Shield. laeld name nnis ef i lengindi- 'fziye main. fende wili e ci?- f' a Spring shield lie-ld a isi e *E l* and forming 

